Assorted cleanup, minor bug fixes, styling fixes, eslint rules (#5165

* fix: Logic error in toast
fix: Remove useless component

* fix: Logout not clearing all stores

* Add icons to notification settings

* Add eslint rule to enforce spaced comment

* Add eslint rule for arrow-body-style

* Add eslint rule to enforce self-closing components

* Add menu to api key settings
Fix: Deleting webhook subscription does not remove from UI
Split webhook subscriptions into active and inactive
Styling updates

app/hooks/useUnmount.ts

@@ -4,11 +4,12 @@ const useUnmount = (callback: (...args: Array<any>) => any) => {
   const ref = React.useRef(callback);
   ref.current = callback;
 
-  React.useEffect(() => {
-    return () => {
+  React.useEffect(
+    () => () => {
       ref.current();
-    };
-  }, []);
+    },
+    []
+  );
 };
 
 export default useUnmount;